I think that the reasons why the green light on your flash (indicating correct exposure) did not light up are this:
>I was to the side of the stage, about 25 feet from front and center. and this: >I had the flash in "high shutter speed" mode... and manual exposure set >on 250 f2.8 As you mention, at 1/250, your Elan IIe requires high-speed sync mode, which requires your flash to emit a series of pulses of light to synchronize with the shutter as the shutter opening moves across the film. This requires the flash to emit more light than a "normal" (without high-speed sync) flash operation. With 800-speed film, it worked OK, because the film required less light for a correct exposure. But your 420EX flash was not powerful enough to produce enough light to correctly expose the 100-speed film. If you could have reduced your exposure time to 1/125, you would have stood a better chance of getting the green light to come on, because at that speed your Elan IIe would have been able to synchronize with the flash without requiring high-speed synch. This would have allowed your 420EX and your Elan IIe to work together much more efficiently. But perhaps 1/125 would have been to slow to stop the action on stage. As your lens was probably already wide open to capture the maximum light at f/2.8, the only other two options (apart from a faster film of course) would have been a more powerful flash (but perhaps even a 550EX would not have been powerful enough) or a camera body that could synchronize with the flash at 1/250 without using high-speed sync (only the 1-series EOS bodies can do this) or perhaps 1/200 (the EOS 3 can do this). Gerry * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
